November 2006
ASM2P5T905A
rev 0.2
Power Supply Characteristics for 1.8V LVTTL Outputs1
Symbol
Parameter
Quiescent VDD Power Supply
Test Conditions2
Typ
Max
Unit
VDDQ= Max., Reference Clock = LOW3
Outputs enabled, All outputs unloaded
IDDQ
20
30
mA
Current
Quiescent VDDQ Power Supply
Current
VDDQ= Max., Reference Clock = LOW3
IDDQQ
IDDD
0.1
20
20
0.3
30
30
mA
Outputs enabled, All outputs unloaded
Dynamic VDD Power Supply
Current per Output
VDD= Max., VDDQ= Max., CL= 0pF
VDD= Max., VDDQ= Max., CL= 0pF
µA/MHz
µA/MHz
Dynamic VDDQ Power Supply
Current per Output
IDDDQ
VDDQ= 1.8V, FREFERENCE CLOCK= 100MHz,
CL= 15pF
20
30
20
45
30
40
40
80
Total Power VDD Supply
Current
ITOT
mA
mA
VDDQ= 1.8V, FREFERENCE CLOCK= 200MHz,
CL= 15pF
VDDQ= 1.8V, FREFERENCE CLOCK= 100MHz,
CL= 15pF
VDDQ= 1.8V, FREFERENCE CLOCK= 200MHz,
CL= 15pF
Total Power VDDQ Supply
Current
ITOTQ
NOTES:
1. These power consumption characteristics are for all the valid input interfaces and cover the worst case input and output interface combinations.
2. The termination resistors are excluded from these measurements.
3. If the differential input interface is used, the true input is held LOW and the complementary input is held HIGH.
Differential Input AC Test Conditions for 1.8V LVTTL
Symbol
VDIF
VX
VTHI
tR, tF
Parameter
Value
VDDI
VDDI /2
Units
V
mV
V
Input Signal Swing1
Differential Input Signal Crossing Point2
Input Timing Measurement Reference Level3
Input Signal Edge Rate4
Crossing Point
1.8
V/nS
NOTES:
1. VDDI is the nominal 1.8V supply (1.8V ± 0.15V) of the part or source driving the input. A nominal 1.8V peak-to-peak input pulse level is specified to allow
consistent, repeatable results in an automatic test equipment (ATE) environment. Compliant devices must meet the VDIF (AC) specification under actual use
conditions.
2. A nominal 900mV crossing point level is specified to allow consistent, repeatable results in an automatic test equipment (ATE) environment. Compliant
devices must meet the VX specification under actual use conditions.
3. In all cases, input waveform timing is marked at the differential cross-point of the input signals.
4. The input signal edge rate of 1.8V/nS or greater is to be maintained in the 20% to 80% range of the input waveform.
Single-Ended Input AC Test Conditions for 1.8V LVTTL
Symbol
VIH
VIL
VTHI
tR, tF
NOTES:
Parameter
Value
VDDI
0
VDDI /2
2
Units
V
V
mV
V/nS
Input HIGH Voltage1
Input LOW Voltage
Input Timing Measurement Reference Level2
Input Signal Edge Rate3
1. VDDI is the nominal 1.8V supply (1.8V ± 0.15V) of the part or source driving the input.
2. A nominal 900mV timing measurement reference level is specified to allow constant, repeatable results in an automatic test equipment (ATE) environment.
3. The input signal edge rate of 2V/nS or greater is to be maintained in the 10% to 90% range of the input waveform.
2.5V Single Data Rate 1:5 Clock Buffer Terabuffer
12 of 19
Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
